Related papers: Deeply virtual Compton scattering off Helium nucle…

Deeply virtual Compton scattering using a positron beam in Hall-C at Jefferson Lab

We propose to use the High Momentum Spectrometer of Hall C combined with the Neutral Particle Spectrometer (NPS) to perform high precision measurements of the Deeply Virtual Compton Scattering (DVCS) cross section using a beam of positrons.…

Nuclear Experiment · Physics 2022-01-25 A. Afanasev , I. Albayrak , S. Ali , M. Amaryan , J. R. M. Annand , A. Asaturyan , V. Bellini , V. V. Berdnikov , M. Boer , K. Brinkmann , W. J. Briscoe , A. Camsonne , M. Caudron , L. Causse , M. Carmignotto , D. Day , M. Defurne , S. Diehl , R. Ent , P. Chatagnon , R. Dupré , D. Dutta , M. Ehrhart , M. A. I. Fernando , T. Forest , M. Guidal , J. Grames , P. Gueye , S. Habet , D. J. Hamilton , A. Hobart , T. Horn , C. Hyde , G. Kalicy , D. Keller , C. Keppel , M. Kerver , E. Kinney , H. -S. Ko , D. Marchand , P. Markowitze , M. Mazouz , M. McCaughan , B. McKinnon , A. Mkrtchyan , H. Mkrtchyan , M. Muhoza , C. Muñoz Camacho , J. Murphy , P. Nadel-Turonski , S. Niccolai , G. Niculescu , R. Novotny , R. Paremuzyan , I. Pegg , K. Price , H. Rashad , J. Roche , R. Rondon , B. Sawatzky , V. Sergeyeva , S. Širca , A. Somov , I. Strakovsky , V. Tadevosyan , R. Trotta , H. Voskanyan , E. Voutier , B. Wojtsekhowski , S. Wood , S. Zhamkochyan , J. Zhang , S. Zhao , C. Zorn

Deeply virtual Compton Scattering off $^4$He

Deeply virtual Compton scattering is a fascinating process which can provide a tomographic view of nuclei and bound nucleons. The first experimental results for $^4$He targets, recently released at Jefferson Lab, have been analyzed here in…

Nuclear Theory · Physics 2021-02-03 Sara Fucini , Sergio Scopetta , Michele Viviani

Deeply Virtual Compton Scattering at HERA II

A new measurement is presented of elastic deeply virtual Compton scattering (DVCS) based on data taken by the H1 detector during the complete HERA II period. The data are well described by QCD based calculations. For the first time, a beam…

High Energy Physics - Phenomenology · Physics 2007-05-23 Laurent Schoeffel

Deeply virtual Compton scattering on longitudinally polarized protons and neutrons at CLAS

This paper focuses on a measurement of deeply virtual Compton scattering (DVCS) performed at Jefferson Lab using a nearly-6-GeV polarized electron beam, two longitudinally polarized (via DNP) solid targets of protons (NH3) and deuterons…

Nuclear Experiment · Physics 2019-08-13 Silvia Niccolai

Theoretical study of deeply virtual Compton scattering off $^4$He

An interesting breakthrough in understanding the elusive inner content of nuclear systems in terms of partonic degrees of freedom is represented by deeply virtual Compton scattering processes. In such a way, tomographic view of nuclei and…

Nuclear Theory · Physics 2019-10-22 Sara Fucini , Sergio Scopetta , Michele Viviani

Helium Compton Form Factor Measurements at CLAS

The distribution of the parton content of nuclei, as encoded via the generalized parton distributions (GPDs), can be accessed via the deeply virtual Compton scattering (DVCS) process contributing to the cross section for leptoproduction of…

Nuclear Experiment · Physics 2013-07-02 Eric Voutier

Deeply Virtual Compton Scattering at HERA

The Deeply Virtual Compton Scattering (DVCS) $\gamma^* p \to \gamma p$ cross section has been measured with the H1 detector at HERA with an increased precision and in an extended kinematic domain: at photon virtualities $4<Q^2<80$ GeV$^2$,…

High Energy Physics - Experiment · Physics 2007-05-23 L. Favart

First Measurement of Deeply Virtual Compton Scattering on the Neutron with Detection of the Active Neutron

Measuring Deeply Virtual Compton Scattering on the neutron is one of the necessary steps to understand the structure of the nucleon in terms of Generalized Parton Distributions (GPDs). Neutron targets play a complementary role to…

High Energy Physics - Experiment · Physics 2024-06-26 CLAS Collaboration , A. Hobart , S. Niccolai , M. Čuić , K. Kumerički , P. Achenbach , J. S. Alvarado , W. R. Armstrong , H. Atac , H. Avakian , L. Baashen , N. A. Baltzell , L. Barion , M. Bashkanov , M. Battaglieri , B. Benkel , F. Benmokhtar , A. Bianconi , A. S. Biselli , S. Boiarinov , M. Bondi , W. A. Booth , F. Bossù , K. -Th. Brinkmann , W. J. Briscoe , W. K. Brooks , S. Bueltmann , V. D. Burkert , T. Cao , R. Capobianco , D. S. Carman , P. Chatagnon , G. Ciullo , P. L. Cole , M. Contalbrigo , A. D'Angelo , N. Dashyan , R. De Vita , M. Defurne , A. Deur , S. Diehl , C. Dilks , C. Djalali , R. Dupre , H. Egiyan , A. El Alaoui , L. El Fassi , L. Elouadrhiri , S. Fegan , A. Filippi , C. Fogler , K. Gates , G. Gavalian , G. P. Gilfoyle , D. Glazier , R. W. Gothe , Y. Gotra , M. Guidal , K. Hafidi , H. Hakobyan , M. Hattawy , F. Hauenstein , D. Heddle , M. Holtrop , Y. Ilieva , D. G. Ireland , E. L. Isupov , H. Jiang , H. S. Jo , K. Joo , T. Kageya , A. Kim , W. Kim , V. Klimenko , A. Kripko , V. Kubarovsky , S. E. Kuhn , L. Lanza , M. Leali , S. Lee , P. Lenisa , X. Li , I. J. D. MacGregor , D. Marchand , V. Mascagna , M. Maynes , B. McKinnon , Z. E. Meziani , S. Migliorati , R. G. Milner , T. Mineeva , M. Mirazita , V. Mokeev , C. Muñoz Camacho , P. Nadel-Turonski , P. Naidoo , K. Neupane , G. Niculescu , M. Osipenko , P. Pandey , M. Paolone , L. L. Pappalardo , R. Paremuzyan , E. Pasyuk , S. J. Paul , W. Phelps , N. Pilleux , M. Pokhrel , S. Polcher Rafael , J. Poudel , J. W. Price , Y. Prok , T. Reed , J. Richards , M. Ripani , J. Ritman , P. Rossi , A. A. Golubenko , C. Salgado , S. Schadmand , A. Schmidt , Marshall B. C. Scott , E. M. Seroka , Y. G. Sharabian , E. V. Shirokov , U. Shrestha , N. Sparveris , M. Spreafico , S. Stepanyan , I. I. Strakovsky , S. Strauch , J. A. Tan , N. Trotta , R. Tyson , M. Ungaro , S. Vallarino , L. Venturelli , V. Tommaso , H. Voskanyan , E. Voutier , D. P Watts , X. Wei , R. Williams , M. H. Wood , L. Xu , N. Zachariou , J. Zhang , Z. W. Zhao , M. Zurek

Deeply virtual Compton scattering on the neutron with positron beam

Measuring DVCS on a neutron target is a necessary step to deepen our understanding of the structure of the nucleon in terms of Generalized Parton Distributions (GPDs). The combination of neutron and proton targets allows to perform a flavor…

Nuclear Experiment · Physics 2021-07-28 Silvia Niccolai , Pierre Chatagnon , Mostafa Hoballah , Dominique Marchand , Carlos Munoz Camacho , Eric Voutier

Measurement of the transverse target-spin asymmetry associated with deeply virtual Compton scattering on the proton

Measurements of deeply virtual Compton scattering (DVCS) made at HERMES using 27.6 GeV $e^\pm$ beams and various internal polarized or unpolarized gaseous targets are discussed. Results are reported on the transverse target-spin asymmetry…

High Energy Physics - Experiment · Physics 2007-05-23 Zhenyu Ye

Incoherent deeply virtual Compton scattering off $^4$He

Very recently, for the first time, the two channels of nuclear deeply virtual Compton scattering (DVCS), the coherent and incoherent ones, have been separated by the CLAS collaboration at JLab, using a $^4$He target. The incoherent channel,…

Nuclear Theory · Physics 2021-01-04 Sara Fucini , Sergio Scopetta , Michele Viviani

Measurement of deeply virtual Compton scattering off Helium-4 with CLAS at Jefferson Lab

We report on the measurement of the beam spin asymmetry in the deeply virtual Compton scattering off $^4$He using the CEBAF Large Acceptance Spectrometer (CLAS) at Jefferson Lab using a 6 GeV longitudinally polarized electron beam incident…

Nuclear Experiment · Physics 2021-08-18 R. Dupré , M. Hattawy , N. A. Baltzell , S. Bültmann , R. De Vita , A. El Alaoui , L. El Fassi , H. Egiyan , F. X. Girod , M. Guidal , K. Hafidi , D. Jenkins , S. Liuti , Y. Perrin , S. Stepanyan , B. Torayev , E. Voutier , M. J. Amaryan , W. R. Armstrong , H. Atac , C. Ayerbe Gayoso , L. Barion , M. Battaglieri , I. Bedlinskiy , F. Benmokhtar , A. Bianconi , A. S. Biselli , M. Bondi , F. Bossù , S. Boiarinov , W. J. Briscoe , D. Bulumulla , V. Burkert , D. S. Carman , J. C. Carvajal , M. Caudron , A. Celentano , P. Chatagnon , V. Chesnokov , T. Chetry , G. Ciullo , B. A. Clary , P. L. Cole , M. Contalbrigo , G. Costantini , V. Crede , A. D'Angelo , N. Dashyan , M. Defurne , A. Deur , S. Diehl , C. Djalali , M. Ehrhart , L. Elouadrhiri , P. Eugenio , S. Fegan , A. Filippi , T. A. Forest , Y. Ghandilyan , G. P. Gilfoyle , R. W. Gothe , K. A. Griffioen , H. Hakobyan , T. B. Hayward , K. Hicks , A. Hobart , M. Holtrop , Y. Ilieva , D. G. Ireland , E. L. Isupov , H. S. Jo , K. Joo , S. Joosten , D. Keller , G. Khachatryan , A. Khanal , M. Khandaker , A. Kim , W. Kim , A. Kripko , V. Kubarovsky , S. E. Kuhn , L. Lanza , K. Livingston , M. L. Kabir , M. Leali , P. Lenisa , I. J. D. MacGregor , D. Marchand , N. Markov , V. Mascagna , M. Mayer , B. McKinnon , M. Mirazita , V. I. Mokeev , K. Neupane , S. Niccolai , T. R. O'Connell , M. Osipenko , M. Paolone , L. L. Pappalardo , R. Paremuzyan , E. Pasyuk , D. Payette , W. Phelps , N. Pivnyuk , O. Pogorelko , J. Poudel , Y. Prok , M. Ripani , J. Ritman , A. Rizzo , G. Rosner , P. Rossi , J. Rowley , F. Sabatié , C. Salgado , A. Schmidt , R. Schumacher , V. Sergeyeva , Y. Sharabian , U. Shrestha , D. Sokhan , O. Soto , N. Sparveris , I. I. Strakovsky , S. Strauch , N. Tyler , M. Ungaro , L. Venturelli , H. Voskanyan , A. Vossen , D. Watts , K. Wei , X. Wei , L. B. Weinstein , R. Wishart , M. H. Wood , B. Yale , N. Zachariou , J. Zhang

Double deeply virtual Compton scattering with positron beams at SoLID

Double Deeply Virtual Compton Scattering (DDVCS) is the only experimental channel for the determination of the dependence of the Generalized Parton Distributions (GPDs) on both the average and the transferred momentum independently. The…

Nuclear Experiment · Physics 2021-12-20 S. Zhao , A. Camsonne , D. Marchand , M. Mazouz , N. Sparveris , S. Stepanyan , E. Voutier , Z. W. Zhao

First Exclusive Measurement of Deeply Virtual Compton Scattering off $^4$He: Toward the 3D Tomography of Nuclei

We report on the first measurement of the beam-spin asymmetry in the exclusive process of coherent deeply virtual Compton scattering off a nucleus. The experiment used the 6 GeV electron beam from the CEBAF accelerator at Jefferson Lab…

Nuclear Experiment · Physics 2017-11-22 M. Hattawy , N. A. Baltzell , R. Dupré , K. Hafidi , S. Stepanyan , S. Bültmann , R. De Vita , A. El Alaoui , L. El Fassi , H. Egiyan , F. X. Girod , M. Guidal , D. Jenkins , S. Liuti , Y. Perrin , B. Torayev , E. Voutier , K. P. Adhikari , S. Adhikari , D. Adikaram , Z. Akbar , M. J. Amaryan , S. Anefalos Pereira , Whitney R. Armstrong , H. Avakian , J. Ball , M. Bashkanov , M. Battaglieri , V. Batourine , I. Bedlinskiy , A. S. Biselli , S. Boiarinov , W. J. Briscoe , W. K. Brooks , V. D. Burkert , Frank Thanh Cao , D. S. Carman , A. Celentano , G. Charles , T. Chetry , G. Ciullo , L. Clark , L. Colaneri , P. L. Cole , M. Contalbrigo , O. Cortes , V. Crede , A. D'Angelo , N. Dashyan , E. De Sanctis , A. Deur , C. Djalali , L. Elouadrhiri , P. Eugenio , G. Fedotov , S. Fegan , R. Fersch , A. Filippi , J. A. Fleming , T. A. Forest , A. Fradi , M. Garçon , N. Gevorgyan , Y. Ghandilyan , G. P. Gilfoyle , K. L. Giovanetti , C. Gleason , W. Gohn , E. Golovatch , R. W. Gothe , K. A. Griffioen , L. Guo , H. Hakobyan , C. Hanretty , N. Harrison , D. Heddle , K. Hicks , M. Holtrop , S. M. Hughes , D. G. Ireland , B. S. Ishkhanov , E. L. Isupov , H. Jiang , K. Joo , S. Joosten , D. Keller , G. Khachatryan , M. Khachatryan , M. Khandaker , A. Kim , W. Kim , A. Klein , F. J. Klein , V. Kubarovsky , S. E. Kuhn , S. V. Kuleshov , L. Lanza , P. Lenisa , K. Livingston , H. Y. Lu , I . J . D. MacGregor , N. Markov , M. Mayer , M. E. McCracken , B. McKinnon , C. A. Meyer , Z. E. Meziani , T. Mineeva , M. Mirazita , V. Mokeev , R. A. Montgomery , H. Moutarde , A Movsisyan , C. Munoz Camacho , P. Nadel-Turonski , L. A. Net , S. Niccolai , G. Niculescu , I. Niculescu , M. Osipenko , A. I. Ostrovidov , M. Paolone , R. Paremuzyan , K. Park , E. Pasyuk , E. Phelps , W. Phelps , S. Pisano , O. Pogorelko , J. W. Price , Y. Prok , D. Protopopescu , M. Ripani , B. G. Ritchie , A. Rizzo , G. Rosner , P. Rossi , F. Sabatié , C. Salgado , R. A. Schumacher , E. Seder , Y. G. Sharabian , A. Simonyan , Iu. Skorodumina , G. D. Smith , D. Sokhan , N. Sparveris , S. Strauch , M. Taiuti , M. Ungaro , H. Voskanyan , N. K. Walford , D. P. Watts , X. Wei , L. B. Weinstein , M. H. Wood , N. Zachariou , L. Zana , J. Zhang , Z. W. Zhao

Deeply Virtual Compton Scattering off the neutron

The present experiment exploits the interference between the Deeply Virtual Compton Scattering (DVCS) and the Bethe-Heitler processes to extract the imaginary part of DVCS amplitudes on the neutron and on the deuteron from the…

Nuclear Experiment · Physics 2019-08-13 M. Mazouz , A. Camsonne , C. Muñoz Camacho

DVCS at HERA and at CERN

Deeply Virtual Compton Scattering (DVCS) in $ep$ collisions has emerged in recent years as a an essential reaction to obtain information on the correlation of partons in the hadron (proton) or on the transverse distribution of these…

High Energy Physics - Phenomenology · Physics 2009-09-11 Laurent Schoeffel

Beam Charge Asymmetries for Deeply Virtual Compton Scattering on the Proton at CLAS12

The parameterization of the nucleon structure through Generalized Parton Distributions (GPDs) shed a new light on the nucleon internal dynamics. For its direct interpretation, Deeply Virtual Compton Scattering (DVCS) is the golden channel…

Nuclear Experiment · Physics 2023-11-14 E. Voutier , V. Burkert , S. Niccolai , R. Paremuzyan , A. Afanasev , J. -S. Alvarado-Galeano , M. Atoui , L. Barion , M. Battaglieri , J. Bernauer , A. Bianconi , M. Bondi , W. Briscoe , A. Camsonne , R. Capobianco , A. Celentano , P. Chatagnon , T. Chetry , G. Ciullo , P. Cole , M. Contalbrigo , G. Costantini , M. Defurne , A. Deur , R. De Vita , S. Diehl , R. Dupré , L. Elouadrhiri , I. Fernando , A. Filippi , T. Forest , F. -X. Girod , G. Gosta , J. Grames , P. Gueye , S. Habet , M. Hattawy , D. Higinbotham , A. Hobart , C. Hyde , K. Joo , A. Kim , V. Klimenko , V. Kubarovsky , M. Leali , P. Lenisa , D. Marchand , L. Marsicano , V. Mascagna , D. Matamoros , M. McCaughan , B. McKinnon , S. Migliorati , H. S. Mitra , A. Movsisyan , C. Muñoz-Camacho , M. Osipenko , M. Ouillon , L. Pappalardo , B. Pasquini , E. Pasyuk , N. Pilleux , M. Poelker , B. Raue , M. Ripani , R. Santos , A. Schmidt , R. Singh , D. Sokhan , M. Spreafico , P. Stoler , I. Strakovsky , M. Taiuti , L. Venturelli , P. -K. Wang , X. Wei , Z. Zhao , the CLAS Collaboration , the Jefferson Lab Positron Working Group

Unitary constraints on Deeply Virtual Compton Scattering

At moderately low momentum transfer (-t up to 1 GeV^2) the coupling to the vector meson production channels gives the dominant contribution to real Compton and deeply virtual Compton scattering (DVCS). Starting from a Regge Pole approach…

High Energy Physics - Phenomenology · Physics 2008-11-26 J. -M. Laget

Spectator-Tagged Deeply Virtual Compton Scattering on Light Nuclei

The three-dimensional picture of quarks and gluons in the proton is set to be revealed through Deeply virtual Compton scattering while a critically important puzzle in the one-dimensional picture remains, namely, the origins of the EMC…

Nuclear Experiment · Physics 2017-08-03 Whitney Armstrong , John Arrington , Ian Cloët , Adam Freese , Kawtar Hafidi , Mohammad Hattawy , Seamus Riordan , Sereres Johnston , David Potteveld , Paul Reimer , Zhihong Ye , Jacques Ball , Maxime Defurne , Michel Garcon , Herve Moutarde , Sebastien Procureur , Franck Sabatie , Wim Cosyn , Malek Mazouz , Alberto Accardi , Julien Bettane , Gabriel Charles , Raphael Dupre , Michel Guidal , Dominique Marchand , Carlos Munoz , Silvia Niccolai , Eric Voutier , Krishna Adhikari , James Dunne , Dipangkar Dutta , Lamiaa El Fassi , Md Latiful Kabir , Li Ye , Vadim Guzey , Nathan Baltzell , Francois-Xavier Girod , Valery Kubarovsky , Kijun Park , Stepan Stepanyan , Burcu Duran , Sylvester Joosten , Zein-Eddine Meziani , Michael Paolone , Melanie Rehfuss , Nikos Sparveris , Frank Cao , Kyungseon Joo , Andrei Kim , N. Markov , Sergio Scopetta , Bryan McKinnon , William Brooks , Ahmed El-Alaoui , Simonetta Liuti , David Jenkins

Deeply virtual Compton scattering at small-$x$ in future Electron - Ion Colliders

The study of exclusive processes in the future electron-ion ($eA$) colliders will be an important tool to investigate the QCD dynamics at high energies as they are in general driven by the gluon content of the target which is strongly…

High Energy Physics - Phenomenology · Physics 2015-06-11 V. P. Goncalves , D. S. Pires